Printing and duplicating machine



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PRINTING AND DUPLICATING MACHINE l2 Sheets-Sheet 6 Filed Aug. 22, 1963 F b. 3 1955 w. RITZERFELD ETAL 3,233,538

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PRINTING AND DUPLICATING MACHINE 12 Sheets-Sheet 9 Filed Aug. 22, 1963 Feb. 8, 1966 w. RITZERFELD ETAL 3,233,533

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PRINTING AND DUPLICATING MACHINE l2 Sheets-Sheet 11 Filed Aug. 22, 1963 Na RN mmw w MN United States Patent 3,233,538 PRHNTENG AND DUPLICATINQ MACHINE Wilheim Ritzerfeld, Schorlemer Alice 14, lierlin-Dahlem, Germany, and Gerhard Ritzerfeid, Franzenshader Str. 21, Beriiu-Grunewaid, Germany Filed Aug. 22, 1963, Ser. No. 303,743 Claims priority, application Germany, Aug. 24, 1962, R 33,380; Apr. 26, 1963, R 35,037 46) Claims. (Cl. 101145) The present invention relates to a printing and duplicating machine, and more particularly to a machine which can be selectively used as a printing machine for carrying out a printing operation requir ng the inking of a printing form, and for a duplicating operation in which copy sheets moistened with alcohol receive imprints from a duplicating master sheet.

in rotary duplicating machines, the master sheet has an amount of ink in the form of the text to be printed, which is gradually dissolved by the alcohol with which the copy sheets were moistened.

Other printing machines are known in which printing foils, such as embossed foils and screen printing foils are reproduced after having been inked. Furthermore, lithographic printing machines are known in which printing form-s are inked by a fatty ink, while at the same time the portions of the printing form which are not to be transferred are wetted with a watery liquid.

All these machine types are separately manufactured, and used for the intended purpose, and in accordance with the prior art, a spirit duplicating machine could not be used for printing with embossed foils, or even for a lithographic printing operation.

It is one object of the present invention to provide a printing machine which can be used for difierent purposes, including duplicating operations with moistened copy sheets, and for printing operations with an inked printing form.

With this object in view, one embodiment of the present invention is a printing machine which comprises printing means on which different types of printing forms, such as lithographic forms or duplicating master sheets may be mounted; inking means having an inoperative condition, and an inking condition cooperating with the printing means for inking a suitable printing form; moistening means having an inoperative condition, and a moistening condition for moistening a copy sheet, for example with alcohol for a duplicating operation; and control means for placing the inking means in the inoperative condition while the moistening means are operative during a duplicating operation, and for placing the inking means in the inking condition while the moistening means is not used during a printing operation using an inking form to which ink is applied, and from which the ink is transferred to a dry copy sheet.

In the preferred embodiment of the invention, the moistening means are supplied with the moistening liquid from a pump which is automatically stopped when the machine is set to a printing operation in which no moistening of copy sheets with alcohol is required. On the other hand, when the machine is to be used for a duplicating operation, the inking means are automatically shifted to a position in which they are inoperative, and cannot get into contact with the duplicating master sheet. A shielding means is automatically moved to a protective position separating the inking roller from the printing roller on which a duplicating master sheet is mounted. Wetting means provided for lithographic printing, are also rendered inoperative during a duplicating operation, and shielding means are automatically placed between the wetting roller and the printing roller to protect the duplicating master sheet. t

35,233,538 Patented Feb. a, less In order to shift the machine from the duplicating condition to the printing condition, an electromagnetic means is preferably used, which may be energized under the control of a manually operated switch.

In the preferred embodiment of the invention, sensing contact means are provided on the printing roller, and sense whether the printing form held on the printing roller is conductive, or non-conductive. Duplicating master sheets are non-conductive, whereas printing forms are at least partly made of a metallic foil so that the sensing contacts are connected, and provide a control pulse energizing relay means for switching the machine between the printing condition and the duplicating condition.

Since conductive printing foils are made in different lengths, sensing contacts are preferably provided which distinguish between printing forms of diiferent length, and cause control means, preferably cams, to hold the inking means in the operative inking position only so long as is required for inking the entire printing form. When the trailing end of the printing form arrives at the inking means, the same are automatically rendered inoperative so that the trailing surface of the printing roller is not inked.

Control cams having cam portions of different lengths corresponding to the different lengths of the conductive printing forms are advantageously provided.

When the machine is set to the printing condition, and the printing means and wetting means are set to the op erative positions in the proximity of the printing roller and printing form, electromagnetic coupling means are automatically energized at the same time to connect drive means with the inking roller so that the same is rotated as required for the proper inking of the printing form. Of course, when the machine is used for a duplicating operation, the electromagnetic coupling is automatically disconnected so that the inking rollers are not driven in the inoperative position thereof.

It is also an object of the present invention to provide a machine which can be economically used for prints requiring a great number of copies, and other prints requiring only a few copies.

With these objects in view, the machine of the present invention is used as a rotary alcohol duplicator when working orders requiring only a few copies are printed, and is set to a lithographic printing operation when a great number of copies is required.

A combined printing and duplicating machine of the above described type may be improperly operated inasmuch as the operator may insert a duplicating master sheet into the clamping means of the printing roller, and then set the machine to operation as a lithographic printing machine. In this event, the duplicating master sheet would be inked, and spoiled.

It is another object of the present invention to avoid such errors, and to provide a foolproof combined printing and duplicating machine in which no inking can take place when a duplicating master sheet is used.

With these objects in view, the present invention provides sensing means in the form of the above-mentioned sensing contacts, which distinguish between the non-conductive duplicating master sheets, and the conductive printing foils used for printing operation requiring inking.

The machine can only be started to operate as a printing machine with operative inking means, if a conductive printing form designed for this purpose is attached to the printing roller.

Signal lamps are provided in the preferred embodiment of the invention to indicate whether the machine is set to a printing operation, or to a duplicating operation. In one embodiment of the invention, the machine is set in accordance with the length of the printing form, and control means render the inking means and, if used, wetting means operative only as long as necessary for the respective printing form, additional signal lamps indicate the length and type of the printing form used.

A rotary printing machine according to the preferred embodiment of the invention comprises printing means including holding means for either a non-conductive duplicating master sheet or a conductive printing form; inking means having an inoperative position and an inking position for inking a conductive printing form; and control means including sensing contact means mounted on the printing means, preferably on the printing roller, so as to be electrically connected by a conductive printing form only. Electromagnetic means are provided in the circuit of the sensing contact means and connected to the inking means for placing the same in the inking position when a conductive printing form connects the sensing conduct means, and for placing the inking means in an inoperative position when a non-conductive master sheet is sensed by the sensing contact means. The pump for the moistening means used during a duplicating operation, is automatically stopped when the machine is set to a position in which the inking means are operative.

A circuit including relays and electromagnetic operating means is controlled by the sensing contact means to automatically perform all operations necessary for setting the machine to one or the other required condition when either a non-conductive printing form, such as a duplicating master sheet, or a conductive printing form, such as a lithographic printing foil are attached by the operator to the clamping means on the printing roller.

The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings, in which:

FIG. 1 is a side view, partially in section, illustrating a combined printing and duplicating machine in a condition in which a spirit duplication can be carried out, the left side wall of the casing being omitted for the sake of clarity;

FIG. 2 is a side view of the machine illustrated in FIG. 1 in the same initial position, but in a condition for carrying out printing operations by means of an inked printing form, for example a lithographic printing operation;

FIG. 3 is a side view illustrating mechanical control means for controlling selective printing operations by moving a counterpressure roller toward and away from a printing roller;

FIG. 4 is a fragmentary horizontal sectional developed view taken on line C-D in FIG. 3;

FIG. 5 is a developed plan view of the machine;

FIG. 6 is a fragmentary side view illustrating inking means and wetting means used for a printing operation of the machine for a printing form having a particular length;

FIG. 7 is a fragmentary side view illustrating the inking means and wetting means for a printing operation with a printing form having another specific length;

FIG. 8 is a fragentary sectional view taken on line E-F in FIG. 7;

FIG. 9 is a fragmentary, schematic side view, partially in section, and illustrating transmission means for driving the inking means and wetting means in synchronism with the printing roller of the machine;

FIG. 10 is a fragmentary horizontal sectional view taken on line GH in FIG. 9;

FIG. 11 is a diagram illustrating the electric circuit of the machine;

FIG. 12 is a fragmentary side view of a Combined printing and duplicating machine according to FIGS. 1 to 11 provided with means for automatically setting the machine for printing from an inked printing form, or for duplicating on moistened copy sheets;

FIG. 13 is a fragmentary developed plan View illustrating the apparatus of FIG. 12, partially in section;

FIG. 14 is a plan vie-w, partially in section, illustrating the printing drum of the machine shown in FIG. 12;

FIG. 15 is an end view, and partially a cross-sectional view, of the printing roller illustrated in FIG. 14;

FIG. 16 is a diagram illustrating the electric circuit of the apparatus shown in FIGS. 12 to 15;

FIG. 16a is a fragmentary view illustrating a first conductive printing form cooperating with sensing contacts; and

FIG. 16b is a fragmentary view illustrating another conductive printing form cooperating with sensing contacts.

Referring now to the drawings, FIGS. 1 to 5 illustrate the general arrangement of the combined printing and duplicating machine which can be selectively used for spirit duplicating, or for printing operations requiring inking of a printing form, such as screen printing or lithographic printing.

A printing roller 1 has a shaft 2 mounted on the side walls 3 and 4 of a casing, and being driven by a motor in the direction of the arrows in FIGS. 1 and 2 by a motor 38, shown in the electric diagram of FIG. 11. The motor is preferably connected to shaft 2 by a chain or belt drive, not shown, and a one revolution clutch is provided to effect a single revolution of the printing roller when the machine is started. Conventional holding means 1a are provided on printing roller 1 for clamping and holding either a duplicating master sheet 152, as shown in FIG. 1, or a printing form 5 which requires inking by a suitable printing ink, and wetting by the application of water. FIG. 1 shows the machine in a position in which a duplieating operation can be carried out on a copy sheet 114 which has to be moistened with alcohol by moistening means 115.

A counterpressure roller 91 cooperates with printing roiler l in a printing plane AB, and can be moved to and from a printing position in which copy sheets supplied by transporting rollers 117 are pressed against a printing form, or a master sheet held on the peripheral surface of the printing roller.

Stripper fingers llb project into circumferential grooves in printing roller 1 and holding means in, and feed the stripped copy sheet to a guide means Ed by which it is deposited on a conveyor 12. Since conveyor 1e runs in the direction of the arrow, the finished printed copy sheet is returned to the front of the machine where the operator supplies the copy sheets to the machine.

As will be explained hereinafter in greater detail, the counterpressure roller can be automatically operated to move to and from the printing position to effect printing of selected lines or text sections of the master sheet 152 on copy sheets 114 passing through the printing line. When the counterpressure roller 91 is in its inoperative position spaced from the printing roller, the moist copy sheet stops, and consequently the next following selected imprint appears on the copy sheet adjacent the preceding imprint, although text sections of the master sheet, separated by undesired text sections, were imprinted.

The machine can consequently operate as a conventional duplicator when in the condition illustrated in FIG. 1. However, in accordance with the present invention inking means 3, and wetting means 21% are provided in order to equip the machine for printing operations in which a printing form, for example a lithographic printing form 5, has to he inked, and made wet, for the pnrpose of printing on copy sheets 114 which are not moistened by alcohol. Evidently, during such a printing operation, the 'moistening means 115 are not used for applying alcohol to the copy sheets, and are inoperative.

FIG. 1 illustrates the inking means 8 and the wetting means 230 in the inoperative position in which duplicat ing operations are carried out, while FIG. 2 illustrates the inking means 8 in an inking position cooperating with the printing form on printing roller 1, and the wetting means 230 in a position in which they are operable to apply water to the printing form.

In order to assure a complete separation of the inking means and wetting means from the master sheet 152 when the machine is used as a rotary duplicating machine, a shielding means '75 is provided which is located between the inking roller 13 and the printing roller 1 when inking roller 13 is in the retracted inoperative position in which it is spaced from theprinting form. Shielding means 250 are provided for covering the wetting roller 246 when the same is inoperative during a duplicating operation;

When the machine is in a duplicating condition illustrated in FIG. 1, the rollers of theinking means and wetting means are not driven, as will be explained hereinafter in greater detail.

Counterpressure roller 91 is controlled by rotary controi cams, as best seen in FIGS. 3 and 4. A cam 93 is associated with the head section of the text on the printing form or master sheet, cams 94a and 94b serve to extend the length of the head section, and a cam 96 serves for producing the entire text. Head cam 93 is connected by a flange 95 with shaft 92. Cam 96 for the entire text can be connected by a coupling pin 97 with the head extension earns 94:: and 9412. This group of cams is connected for rotation with shaft 92 and rotates in synchronism with the printing roller 1, but is shiftable in axial direction on shaft 92 in order to render cams 94a and 94!) effective.

For the selective printing of 1, 2, 3, or more lines of thetext, cams 98a, 93b and 980 are provided which can be adjusted by turning movement or axial shifted, and which have different effective peripheral lengths.

Shaft 92 with the cams connected thereto is driven from printing roller 1 by gear train 99, 100 and 101. The cams 93, 94a, 94b, 96, 98a, 98b and 980 cooperate with cam follower levers 102, 103 and 104 which are mounted on a common shaft 105 and carry cam follower rollers 106, 107, 108 which are controlled by the abovementioned cams in accordance with the relative position of the cam followers to the cams.

Cam follower levers 102,103 and 104,respectively are operated by the cams for time periods depending on the length of the cams, and transfer motion to the toggle lever system 110, 111, 112, 113 to the counterpressure roller 91 so that the same is moved to and from the printing position in accordance with the shape of the controlling cams; Cam follower lever 104 acts directly on lever 110, while cam follower levers 102 and 103 act through shaft 105 on which cam follower lever 104 and lever 109 are fixed. Lever 109 is pivotally connected to an arm 110 secured to shaft 90. Another arm 110 on shaft 90 is pivotally connected with thecamfollowerlever 104 which is also fixed on shaft 105.

The tine selecting cams 98a, 98b and90c are shifted after each revolution of the printing roller so that different lines are selected for printing during'successive revolutions of the printing roller, while the same text portion is always printed on successivecopy sheets. An automatic stepping mechanismis provided for angularly turrring cams 90a, 90b and 98c, and includes a shifting pawl 12-0, a locking pawl 119, and a ratchet wheel 122. Springs 124 and 123 are provided for loading pawls 120 and 119.

Actuating members including rollers 125a, 125b, 1250 are operated by electromagnets 220, 221, 222, respectively, and can be selectively placed in an operative position cooperating with shifting pawl 120.

Electromagnets 220, 221, 2 22 are selectively energized by manual operation of a control rod 141 which carries an actuating member 226.

Upon operation of'controlrod 141, actuating member 226 successively closes contacts 223, 224, 225, as best seen in FIG. 3, and as best seenfrom the circuit diagram of FIG. 11, electromagnets 220, 221, 222 are thereby energized to operate the 'actuatingmembers 220, 221, 222. An actuating member in advanced position'will be engaged by the rotating shifting pawl 120. At the same time, the line selecting cams 98a, 98b'hnd 900 are moved toward the cam follower'roller 108 so that the projecting dwells of cams 98a, 98b, 9% skip 1, 2 or 3 lines of the text according to the number of operated actuating memhers. The length of the headsect'ion'is selected by'opei ation of thecontrol rod 129 which can be arrested in three positions corresponding to head 'cam 93, and head extension cams 94d and 94b. 7

When control rod 129 is longitudinally shifted by manu-' al operation, a linkageincluding lever'131 turnable on a journal 1130, a pin'132, a guide lever 133, a pivot pin 134, a turnable member including a lever arm connected to pin 134 and an elongated hub having a helical groove 136, a shifting fork 137 with 'a feeler pin guidedinheli cal groove 136,and a flange member having a hubcarrying cams 96, 94a, 94b' is actuated. Groove 136 and pin 138 transform the'turning rnovementinto an axial shifting movement by which the'head cams are shifted in axial direction until' their respective selected head cams are engaged by the cam follower roller 107.

Cam followerroller 107 andcam follower lever 103 are displaced-in accorda'ncewith the cam shape of cams 13, 94a'and 94b, and transmits the motion through levers 103, 109, and toggle lever means 110'to 113 to counterpressure roller 91 which'i's moved to a printingposition cooperating with the printing roller and with the master sheet or printing form thereon so that the head section is printed on a copy sheet.

After the head section isprintedfspring 139 moves counterpressure roller 91 away from printing roller '1 which is permitted by the shape of the head cams. During the following turning movement'of printing roller 1, the selected lines are printed.

A shifting movement of control rod 141 is transmitted through lever'143, turnable on a journal 142, 'pivot pin 144, guide lever 145, pivot pin 146 and turnable member 140 which has a helical groove 147, to the fork lever 139 whose feeler pin 150 projects into the helical groove 14-71 Fork lever 149 cooperates with a flange member on which cams 98a, 98b and 986 are mounted for axial movement. Consequently, the line cams 9821, 9312, c can beshifted in accordance with the three positions of control rod 141 so that l, 2, or all 3 line cams coope'rate'with the cam follower roller 108 on cam follower "lever 104.

The movement of cam follower means 108,104 is transmitted during rotation of the cams, which takes place in synchronism with the rotation of the printing roller 1, to lever 109 which acts on the toggle lever system to 113 by which counterpressure roller 91is moved to the printingposition whilethe respective selected three lines of the printing form on printing roller l pass through the printing line.

The electromagnetic means 220, 221 and 222 were previously energized by operation of control rod 141, and actuate the actuating rollers 125a, 1251? and 125C to move the same into the path of movement of the shifting pawl of the steppingmechanism 118 to 124.

Shortly before the termination of a single revolution of printing roller 1, and of the control cams connected thereto for synchronous rotation, shifting 'pawl120engages actuating rollers 121551, 1251) and a, so that the ratchet wheel 222 and with the same line cams 93a, 93b and 980, which are connected thereto for rotation, are shifted throughthree line distances in a direction opposite to the direction of rotation so that during the next revolution of the printing roller, and the printing of the next following copy sheets, not the first, second and third lines, but thefo'urth, fifth and sixth lines are printed until by" a 7 different adjustment of the control rod 141, the number of skipped lines is changed.

While actuating members 2241, 221, 222 determine the number of lines skipped, the number of lines printed can be selected by placing only one or two of the line cams 98a, 98b, 980 in axial positions cooperating with cam follower roller 108.

From the above description of the mechanism illustrated in FIGS. 3 and 4, it will become apparent that, irrespective of whether the machine is used for printing on dry copy sheets with printing ink, or for duplicating from a master sheet on copy sheet moistened with alcohol, selective printing operations are possible for the purpose of imprinting only selected lines or sections of the text on the copy sheet. When counterpressure roller 91 is re:- tracted and inoperative, the copy sheet is not transported, but remains at a standstill while undesired lines or sections of the printing form or master sheet pass the printing line, and when counterpressure roller is again moved to its printing position, and the next following imprint is made, such imprint appears on the copy sheet adjacent the previous imprint, although the selected text sections were spaced on the printing form or master sheet.

Referring again to FIG. 2, the lithographic printing form 5 is clamped in the holding means 1a and manually placed on the cylindrical peripheral surface of printing roller 1. Printing form 5 has, as viewed in the direction in which it is clamped, a thin iron band 6 of approximately 0.04 to 0.1 mm. thickness, and substantially 6 to 8 mm. width. The inner surface of the wall of printing roller 1 has recesses in which permanent magnets 7 are mounted which magnetically attract the iron band 6 on the rear end of the printing foil to secure the same tothe printing roller. Several permanent magnets 7 are advantageously provided spaced in circumferential d-irec-- tion of the printing roller for the purpose of attracting the iron bands at the ends of printing forms of different circumferential lengths.

When it is desired to set the machine from the condition jShOWIl in FIG. 1 in which it works as a rotary duplicator, to the condition of FIG. 1 in which it works as a lithographic printing machine, the push'button T on the control panel 44, see FIGS. 2 and 11, is depressed by the operator so that the circuit of the electromagnetic means M is interrupted, while an electromagnetic coupling means 40 is energized to assume a coupling position.

The de-energization of electromagnetic means M permits inking means 8 and wetting means 230 to move from the inoperative positions shown in FIG. 1 to the positions shown in FIG. 2 under the action of springs provided for this purpose. The electromagnetic coupling means 40 couples the rollers of the inking means and of the wetting means to the drive means of the machine so that the respective rollers are rotated.

An angular member 158 is fixedly connected to the armature of electromagentic means M and acts on a pin 157 of a lever 76 provided on the right side of the machine, as best seen in FIGS. 2 and 5. A control shaft 64, fixedly secured to levers '76, see FIGS. 2 and 6, is urged by springs 81 to assume a position in which inking roller 13 cooperates with printing roller 1. A shielding means '75 is controlled by levers '76 through pivot pin 64, links 77 and guide pins 86 to turn with levers 76. Pins 84 are guided in slots 85 of links 77, so that during the movement of inking roller 13 toward and away from printing roller 1, shielding means 75 remains in its lower inoperative position.

The wetting means 230 is controlled by a manually operated lever 253, as best seen in FIGS. 2, 5 and 6. A shielding means 250 is provided for the wetting roller 246, and is turned between a protective position located be tween wetting roller 246 and printing roller 1, and an inoperative position.

When control shaft 64 is turned in counterclockwise direction, lever 87, which is fixed on shaft 64, turns away from the locking lever means 71 which is turnable on a journal 79.

Due to the action of spring means 70, locking lever 71 is pressed against the control pin 72 of the control lever 73 of a pump means 78 which pumps a moistening liquid, such as alcohol, to the moistening means 115. Lever 73 lifts the roller 89 of control lever 73 from the pump control cam 74 which is mounted on the left side of printing roller 1 on shaft 2.

The inking means 8 has several rollers arranged parallel to the printing roller 1 between the lateral walls 3 and 4. The inking roller 13 is mounted between the plates 9 and 10 in supporting levers 11 and 12 turnable about the displaceable shaft 14 of the transfer roller 15.

The ink measuring roller 16 is moutned in support levers 17 which are mounted on journals 19 of plates 9, 10 for turning movement with levers 18 which are connected to each other at the free ends thereof by a shaft 20.

At the middle of shaft 20, shaft 21 of adjusting screw 22 is mounted, which is threaded through a support bracket 23.

By turning adjusting screw 22, which has a fine thread, the setting levers 18 are turned about journal means 19, and turn by means of screws 24, the supporting levers 17 with the measuring roller 16. Consequently, the small gap between measuring roller 16 and transfer roller 25 can be adjusted in order to determine the precise amount of ink transferred by the transfer roller to the inking roller 13.

The ink raising shaft means 26 is mounted below the measuring roller 16, and carries a scoop 27 consisting of an elastic material, such as rubber. An ink container 28 is mounted below the ink rollers and below shaft 26, and is supported on angular members 30 which are turnable about journal means 29. The turning and support of angular members 30 with container 28 is effected by shifting supporting levers 32 mounted on journal means 31 and links 33 by means of a rod 34, which is manually operated.

As best seen in FIGS. 9 and 10, the ink transfer rollers 15 and 25, and the measuring roller 16, are driven and rotated from the gear 35 of printing roller 1 through gear means 36, 37 and shaft 38. Pinion 37 with shaft 38 is connected by a key 41 with the annular magnet 39 of a magnetic coupling 40. The armature part 42 of magnetic coupling is fixedly secured to gear 43, and when magnetic coupling 40 is energized by operation of pushbutton T see FIGS. 2 and 11, and placed in a coupling position, the gears 45, 46, 47 are rotated and drive the inking rollers 15 and 25, and the gears 43 and 49 by which measuring roller 16 is driven. Shaft 53 of measur ing roller 16 carries a fixed chain sprocket 50 which drives through chain 51 sprocket 52 of shaft 26 by which the ink is scooped up.

The rollers of the inking means 8 are of different lengths, measuring roller 16 being the longest, and ink roller 13 being the shortest, as best seen in FIG. 10.

As best seen in FIGS. 2, 5 and 6, the wetting means 230 include a container 231 with a wetting liquid 232, and a roller 236 which functions to scoop up the liquid. Roller 236 has a tubular core 237 and is turnably mounted on anti-friction bearings 238 on shaft 233.

Supporting levers 245 are mounted on shaft 233 which is supported in the lde walls 3 and 4. Wetting roller 246 has a shaft 24-7 turnably supported in support levers 245.

An angular cam follower lever 243 with cam follower roller 244 is fixedly connected with shaft 233 outside of side wall 3, and is biased by a tension spring 263 which is connected to a pin 262 on follower lever 243. Cam follower roller 244 cooperates with a group of cams 54 to control the movement of wetting roller 246 between a wetting position and an inoperative position spaced from printing roller 1.

A manually Operated lever 253 is turnable about a journal 252, and can be arrested in a plurality of displaced positions by catch means 258. Lever 253 turns cam follower lever 243 through a link 254 which is pivotally connected at 256 and has a slot 255 for guiding a pin 257 on cam follower lever 243. By placing lever 253 in a selected position, the wetting roller 246 is blocked in an inoperative position and can consequently be rendered inoperative during the printing of a screen foil, as well as during a spirit duplication operation. Link 260 is also controlled by an arm of manually operated lever 253 to which it is connected by a pivot pin 259. Shielding means 256 has two lateral arms 243, 249 mounted on journal 247, and a screw 251 secures the end of link 260 to one of the arms so that the shielding means 260 is operated by handle 253.

As best seen in FIGS. 9 and 10, the scoop roller 236 is driven from gears 35, 36, 37 which is connected through shaft 38 and key 41 with the annular magnet 39 of the magnetic coupling 40. Gear 43 which is fixedly connected to the armature member 42 of magnetic coupling 40, drives through a pair of gears 240, mounted on a journal means 242, gear 239 of the scoop roller 236 when pushbutton T of panel 44 is operated.

When electromagnetic means M is tie-energized by operation of pushbutton T the force exerted on lever 76, see FIGS. 2 and 5, is terminated, and the springs 81 turn control shaft 64 to the position in which the inking roller 13 is in an inking position, while the shielding means 75 is turned down to an inoperative position.

Since the magnetic coupling 40 is simultaneously energized, the inking rollers and the wetting rollers, which were placed by handle 253 in an operative wetting position, are driven by the transmission means shown in FIGS. 9 and 10 from the drive motor 88 of the printing roller 1.

Control cams 54 are mounted on shaft 2 on the left side of printing roller 1, and can be adjusted to determine the angle of the turning movement of the printing roller during which the inking means 8 and the wetting means 230 are operative to cooperate with the printing form 5.

A hub 55 of a cam 56 is fixedly secured to the shaft 2. A connecting cam 57, and a setting cam 58 are mounted on the cylindrical support 59, as best seen in FIG. 8. Setting cam 58 is secured by screws to member 59, while cam 57 is loosely mounted between the coupling pins 60 of setting cam 58. Cam 58 has a graduated scale 61 which indicates the length of printing forms, for example DIN A and DIN A when moving relative to a fixed point on a cap, not shown. The cam group 54 can also be adjusted in accordance with the length of other printing forms.

FIG. 6 illustrates the group of cams 54 adjusted for the length of a printing form DIN A In order to adjust the cams corresponding to the length of another printing form, DIN A screw 62 is loosened, member 59 with setting cam 58 and scale 61 is turned to the mark DIN A and the screw 62 is again tightened, see FIGS. 7 and 8. Since cam 56 remained in place, the connecting cam 57 has assumed a connecting position due to the coupling pins 60. Consequently, the combined cam track length of earns 56, 57, 58 corresponds now to the length of the selected printing form DIN A The cam follower lever 63 cooperates with the group of cams 54 to control the time period during which the inking roller is in the inking position. Roller 65 of can follower 63 is located on a cam lobe of cam group 54 in the initial position of the machine. Consequently, the rollers 80 of member 66 which are fixedly connected to control shaft 64, exert pressure on the abutment portions 67 of supporting levers 11, 12, and maintain inking roller 13 in an inoperative position spaced from printing roller 1 and printing form 5.

During rotation of printing roller 1 with the group of cams 54, roller 65 of cam follower lever 63 is drawn by spring 68 to engage a lower cam portion, in accordance with the selected position of the cams 54. The pivotal 19 movement of cam follower 63 is transmitted by control shaft 64 to the links 66 whose rollers 80 are lifted off the abutment pieces 67 of support levers 11 and 12 so that the inking roller 13 supported thereon is drawn to an inking position for inking the printing form 5 since springs 81 bias support levers 11 and 12 in this direction of movement. When the end of printing form 5 is reached by printing roller 13, the respective cam lobes of the cam group 54 becomes again effective to move the inking roller 13 to an inoperative position spaced from the peripheral surface of printing roller 1 so that the same cannot be inked in the area following the end of the printing form 5.

When the main switch 126, see circuit diagram of FIG. 11, is operated, motor 88 starts to rotate, and drives gear of printing roller 1, as best seen in FIGS. 9 and 10. At the same time, the magnetic coupling is energized through transformer 127 and rectifier 128. Gear 35 drives through gears 36, 37, magnet coupling 40, gears 43, 45, 46, 4'7, 48, 49, the inking rollers of the inking means 8, and also drives through gear 43 through intermediate gears 240, 241 and gear 239 the rollers of the wetting means 230.

The scoop shaft 26, driven from roller 16 through chain drive 50, 51, 52, scoops the printing ink 159 by the scoop 27 out of container 28 and transfers the ink to the measuring roller 16 and from there through transfer rollers 25 and 15 to the inking roller 13.

The printing form 5, which may be a lithographic printing foil, or a screen printing foil, is now used for a selective printing operation as described with reference to FIGS. 3 and 4 by operation of the counterpressure roller 91 between inoperative and printing positions in accordance with the cams 94a, 94b, 94s for the head text section, and cams 98a, 98b and 980 for line sections.

The copy sheet 114 is supplied by transporting rollers 116 and 117 to the printing line between the counterpressure roller and the printing roller 1, and when the latter performs a single revolution under the control of i a one revolution coupling, not shown, first the head text,

according to the adjusted cams 94a, 94b, 94c and then the selected lines are printed on the copy sheet.

When printing operations with an inked and wetted lithographic printing form 5 are terminated, the machine can be set to a duplicating operation.

Key T of panel 44 is operated so that the switch of the electromagnetic coupling means 40 disconnects the same from the source of voltage, while the electro-magnetic means M is energized. The magnet coupling 40 is disconnected by separation of magnet 39 from the armature disc 42, and the drive of the inking rollers 15 and 25, of the measuring roller 16, and of the scoop roller 26 is interrupted.

The armature of the electromagnetic means M draws through link 158 pin 157 of the lever 76 on the right side of the printing roller in the direction of the arrow. Lever 76 is fixedly connected with control shaft 64 so that the left lever 76, and lever 66, 87 turn in clockwise direction. Rollers 80 of links 66 press against the abutment portions 67 of support levers 11 and 12 and turn inking roller 13 from its normal position to an inoperative position in which it is no longer controlled by the respective control cams. Printing roller 13 remains in this inoperative position during a following duplicating operation.

At the same time, the turning movement of levers 76 has been transmitted through the linkage S4, 77, 86 to the shielding means so that the same is turned to a protective position located between the inking roller 13 and the printing roller so that the duplicating master sheet 152, which is now inserted into the holding means of the printing roller, cannot be smeared by printing ink.

The cam follower lever 243 of the wetting means 230 is blocked by operation of handle lever 253 which is placed in a suitable blocking position in which it is arrested by arresting means 258. Link 254 with slot 255 11 acts on pivot pins 256 and 257 to lock the wetting roller 246 in an inoperative position spaced from the printing roller and the duplicating master sheet. At the same time, the link 260 acts on pin 25% and screw 251 to turn shielding means 250 to a protective position located between the wetting roller 246 and the printing roller 1.

Lever 87 engages the lower arm of locking lever 71 during its turning movement, and turns lever 71 about journal 79 so that the upper arm of locking lever 71 releases control pin 72 of the pump control lever 73 of pump 78 so that roller 89 of pump control lever 73 is turned by the action of spring 160 into engagement with the pump control cam 74. Consequently, during the following duplicating operation, the liquid is pumped to the moistening means 115 to moisten the supplied copy sheets 114.

The ink container 28 is turned to a lower position when levers 32 and 33 are operated by the manually operated control rod 34. When a duplicating master sheet 152 is mounted in the holding means 1a of printing roller 1, the machine is ready for a duplicating operation in which a copy sheet 114 moistened by the moistening means 115 is pressed against a duplicating master sheet 152 during rotation of the printing roller and counterpressure roller, when the latter is in the operative printing position.

Referring now to the embodiment of FIGS. 12 to 16, the general construction of the machine corresponds to the machine described with reference to FIGS. 1 to 11. Therefore, corresponding parts are identified by corresponding reference numerals. The details of the inking device, and the wetting device are not illustrated in FIGS. 12 to 16, and correspond exactly to the devices described with reference to FIGS. 1 to 11. In fact, the devices illustrated in FEGS. 12 to 16, are simply additions to the machine described with reference to FIGS. 1 to 12.

One additional device is a feeler means including a plurality of feeler fingers for turning movement on a shaft 272, and projecting into grooves in the transport roller 117. Counterweights 27s are secured to the feeler fingers 2'71 and turn the same to a position abutting the metal transporting roller 1143 so that, as best seen in FIG. 16, a circuit is closed in which an electromagnetic means 270 is connected, as best seen in FIGS. 12, 13 and 16. When electromagnetic means 270 is energized, the armature lever 277 is in such a position that the locking means 278 looks the printing roller against operation. Therefore, as long as no copy sheet 114 is inserted between the transporting rollers 116 and 117, the machine cannot be started. When a copy sheet is placed in the proper position between the transporting rollers 116, 117, the feeler fingers 271 are pushed away from the conductive transporting roller 116, and the circuit of electromagnetic means 270 is interrupted so that the spring loaded lever 277 is turned to a position releasing locking means 278, so that the machine can be started.

The locking means 278 may control a catch preventing rotation of the printing roller, or a switch interrupting the circuit of the drive motor for the printing roller 1,

An electromagnetic means 232, corresponding to the electromagnetic means M described with reference to FIGS. 1 to 11, is provided for shifting the inking means between inoperative and inking positions. As shown in FIG. 16, a relay contact 281 controlled by a relay 279 is connected in series with the electromagnetic means 222. In the illustrated position of switch 281, the electromagnetic means 232 is energized and holds the inking means in the inoperative position which is required for a duplicating operation. in the other position of switch .281, an electromagnetic coupling 2%, corresponding to the electromagnetic coupling 40 described with reference to FIGS. 1 to 11, is energized, so that the inking rollers are rotated Switch 281 is controlled by a relay 279 which also controls another switch 283 which is connected in series either with the control lamp 284 indicating a duplicating operation, or with the control lamp 300 indicating a printing operation in which the printing form is inked. Signal lamp 284 for duplicating operations may be blue, and signal lamp 300 for printing operations may be yellow.

As best seen in FIG. 15, the clamping means 286 for holding a printing form 5, or a duplicating master sheet, carries an axially extending insulating bar 237 in which contacts 238, 239 and 290 are embedded insulated from each other. The positions of the contacts 288, 2&9, 290 are best seen in FIG. 14. The clamping portion of printing roller 1 which cooperates with the clamping means 286 is provided with an axially extending insulating bar 285.

A disc 291 consisting of an insulating material is secured to the left side of printing roller 1, and carries slide rings 292, 293, 294 which are respectively connected by insulated wires to the contacts 238, 289, 290.

The side wall 3 of the machine casing carries a contact arm 295 which is fixedly secured thereto. Slide contacts 2%, 297, 298 are mounted on contact arm 295, and are respectively connected with relay 279, mass, and relay 280, as best seen in FIG. 16.

It is intended to use during printing operations either shorter printing forms DIN A or longer printing forms DIN A Control cams 308, 309 are fixedly secured to shaft 2 for rotation therewith, and have peripheral cam lobes corresponding to the length of the respective printing forms.

As best seen in FIGS. 12 and 13, control cam 309 cooperates with the roller 311 of a cam follower lever 310, and cam 308 cooperates with the roller 313 of a cam follower lever 312. The cam follower lever 310 is fixed to a shaft 64, while cam follower lever 312 is axially shiftable on shaft 64.

An electromagnetic means 303 is associated with the setting of the machine to shorter or longer printing foils. Electromagnetic means 303 is fixed on the side wall 3 of the machine, and has a bearing arm 314 secured thereto. A double arm lever 316 is turnable about a pin 315 on bearing arm 314, and has one forked end 317 connected by pins 318 with the armature 319 of electromagnetic means 303. The other forked end 320 is connected by pins 321 to cam follower lever 312, so that by operation of electromagnetic means 303, roller 313 can be moved between the inoperative position shown in dash and dot lines in FIG. 13, and an operative position cooperating with control cam 308. A spring 324 urges the mechanism to the operative position illustrated in solid lines in FIG. 13, while energization of electromagnetic means 303 will shift cam follower roller 313 to a position spaced from cam 308.

As shown in FIG. 16, relay 280 controls switches 302 and 304. Switch 3%2 is in the open position during the duplicating operation, and is shifted to a position connecting electromagnetic means 303 into the circuit when a printing operation involving inking is to take place. The switch 304 is connected in series with the signal lamp 305 which is associated with a shorter printing form DIN A and may be of green color, but when relay 280 is energized, switch 304 connects a signal lamp 306 to the source of voltage, and this signal lamp may be red and indicate a longer printing form DIN A As best seen in FIGS. 16a and 16b, printing form A has a cut-off corner 301, and cannot engage contact 290. Printing form A; has a full corner, and can engage contact 390, so that contact 290 serves as a sensing contact means to determine what type of printing form has been clamped to the printing roller. The printing forms are conductive, or at least partly conductive in the region of the sensing contact means, whereas the duplicating master sheet is nonconductive, and cannot be sensed by the sensing contact means 238, 233, 290.

During a duplicating operation, the machine operates "i3 as described with reference to FIGS. 1 to 11, and the sensing contacts are not effective since the duplicating master sheet is made of a non-conductive insulating material. Switches 281, 283 are in the illustrated position shown in FIG. 16, so that electromagnetic means 282, previously referred to as M is energized and holds the inking means 8 in the inoperative position shown in FIG. 1. The wetting means 230 is also placed in the inoperative position.

.When the copy sheet 114 is inserted to the proper position, the feeler fingers 271 are separated from the conductive transporting roller 116, locking magnet 270 is interrupted, and the machine released for operation. As explained with reference to FIGS. 1 to 11, the moistening means 115 are rendered operative by operation of pump 78, and duplicating operations can take place.

When the machine is used for a printing operation with a conductive printing foil 5, the same is clamped into the clamping means 286, and its edge is sensed by the sensing contact means 288, 289, 290. Assuming that a shorter printing foil DIN A is secured to the printing roller 1, the relay 279 is energized since the printing foil 5 closes acircuit through contact 288, slide ring 2&2, slide contact 296, contact 289, slide ring 293, and slide contact 297 so that relay 279 is energized and shifts switches 281, 283.

Switch 281 disconnects the electromagnetic means 282 so that spring 81 moves the inking means to the operative position shown in FIG. 2. Switch 283 is shifted to disconnect signal lamp 284, and connect signal lamp 300, indicating a printing operation in which ink is used.

.The shifting of switch 281 connects the electro magnetic coupling 299, which corresponds to the electromagnetic coupling 40, and causes rotation of the inking roller means as described with reference to FIGS. 9 and 10. v

Relay 280 is not energized since no current can fiow over. contact 290 which is located opposite the cutoff corner 301 of the printing foil A as best seen in FIG. 16a. Electromagnetic means 303 is not energized, and the green signal lamp 305, indicating the printing of a printing form DIN A is energized.

Since electromagnetic means 3693 is not energized, spring 324 is effective to shift through lever 316 the cam follower lever 312 with its roller 313 to the position shown in FIG. 13 in which cam follolwer roller 3'13 cooperates with control cam 308, which has a cam track corresponding in peripheral length to the length of the printing foil DIN A The short control cam 308 controls the printing opera tion, and separates the inking means from the printing form as soon as the inking roller 13 reaches the trailing end of the short printing foil DIN A so that the ink is not applied to the surface of the printing roller 1, which is not covered by the printing foil. Cam follower lever 212 acts on shaft 64 to turn the inking roller 13 to an inoperative position spaced from the printing roller, but not retracted all the way as during a duplicating operation.

Relay means 279 is energized through the circuit including contact 288, slide ring 2%, slide contact 296, Contact 289, slide ring 293, and slide contact 297..

When a longer printing foil DIN A; is clamped into the holding means 286, the sensing contacts 290, 289, 288 are connected by the conductive printing foil 322, as shown in FIG. 16b. Electromagnetic means 303 is connected to the source of voltage through relay contact 302. Relay contact 304 is shifted, and a green signal lamp 305 for short printing forms A is extinguished, while the red signal lamp 306 indicating a printing form A, is illuminated.

Electromagnetic means 303 is now energized and attracts armature 319 so that lever 316 is turned, and the cam follower means 312, 313 are moved away from the cam 308 associated with the short printing form A to the position shown in dash and dot lines in FIG. 13. The time during which the inking roller 13 engages the printing form 5 is now determined by the peripheral length of control cam 309 which corresponds to a longer printing form, and when the end of the longer printing form A; is reached, the inking roller 13 is retracted by turning of shaft 64 by cam follower lever 310 under control of control cam 369, so that the peripheral surface of printing roller It following the printing form is not inked.

It will be understood that control cams can be provided for printing form of different lengths. As explained with reference to FIG. 2, the trailing ends of the printing forms are advantageously held by electromagnets 7 secured to the printing roller.

It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of printing machines differing from the types described above.

While the invention has been illustratedland described as embodied in a combined lithographic printing and alcohol duplicating machine for selective printing, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the presentinvention.

Without further analysis, the foregoing will so fully reveal the gist of the. present invention that others can by applying current knowledge readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention and, therefore, such. adaptations should and are intended to be comprehended within the meaning and range of equivalence of the following claims.

What is claimed as new and desired to be secured by Letters Patent is:

1. A rotary printing machine comprising, in combination, printing means including means for holding different types of printing forms including duplicating forms; means for supplying copy sheets to said printing means; inking means having an inoperative condition, and an inking condition cooperating with said printing means for inking a prin'tin form; moistening means having an inoperative condition, and a moistening condition for moistening a copy sheet; and control means operatively connected to said inking means and to said moistening means for selectively placing said inking means in said inoperative condition and said moistening means in said moistening condition, or for placing said inking means in said inking condition and said moistening means in said inoperative condition.

2. A rotary printing machine comprising, in combination, printing means including means for holding different types of printing forms including duplicating forms; means for supplying copy sheets to said printing means; inking means having an inoperative condition, and an inking condition cooperating with said printing means for inking a printing form; moistening means having an inoperative condition, and a moistening condition for moistening a copy sheet and including supply means for supplying a liquid in said moistening condition; and control means operatively connected to said inking means and to said supply means for selectively placing said inking means in said inoperative condition and said moistening means in said moistening condition, or for placing said inking means in said inking condition and for stopping said supply means so that no liquid is supplied for moistening copy sheets so that said moistening means is in said inoperative condition.

3. A rotary printing machine comprising, in combination, printing means including a rotary printing roller, and means for holding different types of printing forms including duplicating forms on the peripheral surface of said printing roller; feeding means for supplying copy sheets 'to said printing roller; inking means movable between an inoperative position spaced from said printing roller and an inking position cooperating with said peripheral surface of said printing roller for inking a printing form thereon; moistening means having an inoperative condition and a moistening condition for moistening a copy sheet supplied by said feeding means; and control means operatively connected to said inking means and to said moistening means for selectively holding said inking means in said inoperative position and said moistening means in said moistening condition, or for holding said inking means in said inking position and said moistening means in said inoperative condition.

4. A rotary printing machine comprising, in combination, printing means including a rotary printing roller, and means for holding different types of printing forms including duplicating forms on the peripheral surface of said printing roller; feeding means for supplying copy sheets to said printing roller; inking means including an inking roller movable between an inoperative position spaced from said printing roller and an inking position cooperating with said peripheral surface of said printing roller for inking a printing form thereon, and shielding means having an inoperative position, and a protecting position located between said inking roller in said inoperative position and said peripheral surface of said printing roller; moistening means having an inoperative condition and a moistening condition for moistening a copy sheet supplied by said feeding means; and control means operatively connected to said inking roller, to said shielding means, and to said moistening means for selectively holding said inking roller in said inoperative position, said shielding means in said protecting position and operatively connected to said inking means and to said moistening means for selectively said moistening means in said moistening condition, or for holding said inking roller in said inking position, said moistening means in said inoperative condition and said shielding means in said inoperative position 5. A printing machine as set forth in claim 4 wherein said inking means includes linkage means connecting said inking roller with said shielding means in such a manner that said inking roller is in said inoperative position when said shielding means is in said protecting position, and is in said inking position when said shielding means is in said inoperative position; and wherein said control means are connected to said linkage means for shifting said inking roller and said shielding means simultaneously between the respective positions of the same.

6. A rotary printing machine comprising, in combination, printing means including a rotary printing roller, and means for holding different types of printing forms including duplicating forms on the peripheral surface of said printing roller; feeding means for supplying copy sheets to said printing roller; inking means including a rotary inking roller movable between an inoperative position spaced from said printing roller and an inking position cooperating with said peripheral surface of said printing roller for inking a printing form thereon, and drive means for rotating said inking roller; moistening means having an inoperative condition and a moistening condition for moistening a copy sheet supplied by said feeding means; and control means operatively connected to said inking roller, to said drive means, and to said moistening means for selectively holding said inking roller in said inoperative position, for stopping said drive means while placing said moistening means in said moistening condition, or for holding said inking means in said inking position and for starting said drive means while placing said moistening means in said inoperative condition.

7. A rotary printing machine comprising, in combination, printing means including a rotary printing roller, and means for holding different types of printing forms including duplicating forms on the peripheral surface of said printing roller; feeding means for supplying copy sheets to said printing roller; inking means including a rotary inking roller movable between an inoperative position spaced from said printing roller and an inking position cooperating with said peripheral surface of said printing roller for inking a printing form thereon, a coupling connecting said inking roller with said printing roller for rotation therewith; moistening means having an inoperative condition and a moistening condition for moistening a copy sheet supplied by said feeding means; and control means operatively connected with said inking roller, said moistening means, and said coupling for selectively holding said inking roller in said inoperative position and for disconnecting said coupling while placing said moistening means in said moistening condition, or for holding said inking roller in said inking position and for engaging said coupling while placing said moistening means in said inoperative condition.

8. A rotary printing machine comprising, in combination, printing means including a rotary printing roller, and means for holding different types of printing forms including duplicating forms on the peripheral surface of said printing roller; feeding means for supplying copy sheets to said printing roller; inking means movable between an inoperative position spaced from said printing roller and an inking position cooperating with said peripheral surface of said printing roller for inking a printing form thereon; moistening means having an inoperative condition and a moistening condition for moistening a copy sheet supplied by said feeding means; and control means including electromagnetic means operatively connected with said inking means and with said moistening means for selectively holding said inking means in said inoperative position and said moistening means in said moistening condition, or for holding said inking means in said inking position and said moistening means in said inoperative condition.

9. A rotary printing machine comprising, in combination, printing means including a rotary printing roller, means for holding diiferent types of printing forms including a duplicating master on the peripheral surface of said printing roller, a counterpressure roller, and means for moving said counterpressure roller selectively between a printing position cooperating with said peripheral surface of the printing roller, and an inoperative position spaced therefrom; feeding means for supplying copy sheets to said printing roller and to said counterpressure roller; inking means movable between an inoperative position spaced from said printing roller and an inking position cooperating With said peripheral surface of said printing roller for inking a printing form thereon; moistening means having an inoperative condition and a moistening condition for moistening a copy sheet supplied by said feeding means; and control means operatively connected with said inking means and with said moistening means for selectively holding said inking means in said inoperative position while said moistening means is in said moistening condition, or for holding said inking means in said inking position while said moistening means is in said inoperative condition.

iii. A rotary printing machine comprising, in combination, printing means including means for holding different types of printing forms including duplicating forms; means for supplying copy sheets to said printing means; inking means having an inoperative condition, and an inking condition cooperating with said printing means for inking a printing form; wetting means movable between an inoperative condition and a wetting condition for applying Water to the printing form; means for moving said wetting means between said conditions thereof; moistening means having an inoperative condition, and a moistening condition for moistening a copy sheet; and control means operatively connected to said inking means, moistening means and wetting means for selectively placing said inking means in said inoperative condition and said moistening means in said moistening condition while said wetting means is in said inoperative condition, or for placing said inking means in said inking condition 

1. A ROTARY PRINTING MACHINE COMPRISING, IN COMBINATION, A PRINTING MEANS INCLUDING MEANS FOR HOLDING DIFFERENT TYPES OF PRINTING FORMS INCLUDING DUPLICATING FORMS; MEANS FOR SUPPLYING COPY SHEETS TO SAID PRINTING MEANS; INKING MEANS HAVING AN INOPERATIVE CONDITION, AND AN INKING CONDITION COOPERATING WITH SAID PRINTING MEANS FOR INKING A PRINTING FORM; MOISTENING MEANS HAVING AN INOPERATIVE CONDITION, AND A MOISTENING CONDITION FOR MOISTENING A COPY SHEET; AND CONTROL MEANS OPERATIVELY CONNECTED TO SAID INKING MEANS AND TO SAID MOISTENING MEANS FOR SELECTIVELY PLACING SAID INKING MEANS IN SAID IN- 